Ruszel, K., P. Pokorski, and H. Piecewicz-Szczęsna. “Cervical Cancer – Risk Factors, Prevention and Diagnostic Procedures in HPV Infections and Cervical Carcinoma. Epidemiological Analysis of Morbidity and Mortality in Poland and the World in 2012-2018”. Journal of Education, Health and Sport, vol. 9, no. 8, Aug. 2019, pp. 363-76, https://apcz.umk.pl/JEHS/article/view/7318.